Add snippets for numeric transforms

Author: samtstern

auth/package.json

@@ -5,6 +5,6 @@
   "author": "Firebase (https://firebase.google.com/)",
   "license": "Apache-2.0",
   "dependencies": {
-    "firebase-admin": "^5.0.0"
+    "firebase-admin": "^7.1.1"
   }
 }

firestore/extend-with-functions/package.json

@@ -3,8 +3,8 @@
   "description": "Cloud Functions and Firestore",
   "main": "index.js",
   "dependencies": {
-    "@google-cloud/firestore": "^0.16.1",
-    "firebase-admin": "^6.0.0",
-    "firebase-functions": "^1.0.0"
+    "@google-cloud/firestore": "^1.1.0",
+    "firebase-admin": "^7.1.1",
+    "firebase-functions": "^2.2.1"
   }
 }

firestore/main/index.js

@@ -269,6 +269,24 @@ function updateDocumentArray(db) {
   });
 }
 
+function updateDocumentIncrement(db) {
+  // [START update_document_increment]
+  var admin = require('firebase-admin');
+  // ...
+  var washingtonRef = db.collection('cities').doc('DC');
+
+  // Atomically incrememnt the population of the city by 50.
+  // Note that increment() with no arguments increments by 1.
+  var popIncrement = washingtonRef.update({
+    population: admin.firestore.FieldValue.increment(50)
+  });
+  // [END update_document_increment]
+
+  return popIncrement.then(res => {
+    console.log('Increment: ' + res);
+  });
+}
+
 function updateDocumentMany(db) {
   // [START update_document_many]
   var cityRef = db.collection('cities').doc('DC');
@@ -391,7 +409,9 @@ function transaction(db) {
   var transaction = db.runTransaction(t => {
     return t.get(cityRef)
       .then(doc => {
-        // Add one person to the city population
+        // Add one person to the city population.
+        // Note: this could be done without a transaction
+        //       by updating the population using FieldValue.increment()
         var newPopulation = doc.data().population + 1;
         t.update(cityRef, {population: newPopulation});
       });
@@ -992,7 +1012,11 @@ describe('Firestore Smoketests', () => {
     return updateDocumentArray(db);
   });
 
-  it('should update many document', () => {
+  it('should update a document using numeric transforms', () => {
+    return updateDocumentIncrement(db);
+  });
+
+  it('should update many documents', () => {
     return updateDocumentMany(db);
   });
 

firestore/main/package.json

@@ -10,10 +10,10 @@
   "author": "",
   "license": "ISC",
   "dependencies": {
-    "@google-cloud/firestore": "^0.21.0",
-    "firebase-admin": "^6.5.1"
+    "@google-cloud/firestore": "^1.1.0",
+    "firebase-admin": "^7.1.1"
   },
   "devDependencies": {
-    "mocha": "^3.3.0"
+    "mocha": "^6.0.2"
   }
 }

firestore/solution-aggregation/functions/package.json

@@ -9,8 +9,8 @@
     "logs": "firebase functions:log"
   },
   "dependencies": {
-    "firebase-admin": "^6.0.0",
-    "firebase-functions": "^1.0.1"
+    "firebase-admin": "^7.1.1",
+    "firebase-functions": "^2.2.1"
   },
   "private": true
 }

firestore/solution-deletes/functions/package.json

@@ -9,8 +9,8 @@
   "author": "",
   "license": "Apache-2.0",
   "dependencies": {
-    "firebase-admin": "^6.0.0",
-    "firebase-functions": "^2.0.5",
-    "firebase-tools": "^4.2.1"
+    "firebase-admin": "^7.1.1",
+    "firebase-functions": "^2.2.1",
+    "firebase-tools": "^6.5.0"
   }
 }

firestore/solution-scheduled-backups/package.json

@@ -16,9 +16,9 @@
     "axios": "^0.18.0",
     "dateformat": "^3.0.3",
     "express": "^4.16.4",
-    "googleapis": "^34.0.0"
+    "googleapis": "^38.0.0"
   },
   "devDependencies": {
-    "prettier": "^1.14.3"
+    "prettier": "^1.16.4"
   }
 }

functions/stackdriver-logging/package.json

@@ -6,7 +6,7 @@
   "author": "",
   "license": "Apache-2.0",
   "dependencies": {
-    "@google-cloud/logging": "^4.2.0",
-    "firebase-functions": "^2.1.0"
+    "@google-cloud/logging": "^4.5.1",
+    "firebase-functions": "^2.2.1"
   }
 }

package.json

@@ -10,8 +10,8 @@
     "lint": "find . -type f -name \"*.js\" -not -path \"*node_modules*\" | xargs eslint"
   },
   "devDependencies": {
-    "eslint": "^4.17.0",
-    "eslint-config-google": "^0.9.1",
-    "lerna": "^2.8.0"
+    "eslint": "^5.15.3",
+    "eslint-config-google": "^0.12.0",
+    "lerna": "^3.13.1"
   }
 }